摘要
受电子单体4-乙烯基吡啶-氯化锌络合物(4-VP)_2ZnCl_2(M_1)可以和电子给体单体如苯乙烯(M_2)在365nm光照下共聚合。聚合是二者形成的基态电荷转移复合物(CTC)吸收光后产生自由基引发的。测得竞聚率为r_1=2.04,r_2=0.23。对溶剂极性的影响和(4-VP)_2Znal_2与其它电子给体单体光照下共聚合也作了研究。
The photo-induced copolymerization of the complex of 4-vinylpyridine and ZnCl2 (4-VP)2ZnCl2 (M1) as an electron-accepting monomer with the electron-donating monomer styrene (M2) was studied under the irradiation at 365 nm. The charge-transfer complex between them absorbs the light and then produces initiating radicals. The reactivity ratios were measured to be r1=2.04 and r2=0.24. The effect of the polarity of the solvents on the copolymerization and the photo-induced copolymerization of (4-VP)2 ZnCl2 with other electron-donating monomers were also investigated.
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
1989年第3期316-321,共6页
Acta Polymerica Sinica
基金
复旦科学基金
关键词
乙烯基吡啶
光聚合
共聚合
苯乙烯
Photopolymerization, Copolymerization, 4-vinylpyridine strucluer
